We stayed at Kanantik for a week last summer. It is all inclusive because it is so isolated. You can take some land tours from there. They have a great dive boat. The grounds, casitas, pool,staff, are exceptional. The food was wonderful and the bar even better-hope Kenny is still there. We were there in June and there were only 4 couples including us. If the couple just wants to be together with no night life then it's perfect. I might suggest going somewhere with more action later in their trip(maybe SanPedro).